The most important SEO task is one way link building. by the link building we will get the back links to our website. there are two types of activities on-page and off page.
I would say that creating unique content is the most important task in SEO. This content can be an exciting Web 2.0 or a social post that can go viral.
I would like to say that The most important task in SEO update unique content on the website and properly optimized with heading tags, interlinking, images optimization, etc.
Search Engine Optimization have some basic technique that are necessary for good ranking. These Tasks are the following:-
-Research
-Link to Google+
-Content
-Heading
-Share Your Content
-Hosting
-Recycle
-Page Loading Time
:lol:
With the advent of new technologies I think that, after backlinks and good contents, AMP (accelerated mobile pages) and Schema.org (Structured data) are really important..